Broadlink RM4 Mini IR Smart Remote Control with HTS2 (Banggood, Aliexpress: Wireless mode 2.4GHz WiFi, Size 46*46*43 mm, Working temperature 0-50°C, Input current 1A, Working humidity ≤85%, Product RM4 mini, Input voltage 5V, Infrared direction Multiple direction infrared (the best price with coupon)).
Go down and check coupons out. Remember to check price history if it is available. What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($25.49): BGSmart6
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGdd0b68, ADMITAD2212
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for Broadlink RM4 Mini IR Smart Remote Control with HTS2 is here. The lowest price was: $25.49.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).